231536051 has 2 divisors, whose sum is σ = 231536052. Its totient is φ = 231536050.

The previous prime is 231536021. The next prime is 231536083. The reversal of 231536051 is 150635132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231536051 - 2¹⁰ = 231535027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231536051.

It is not a weakly prime, because it can be changed into another prime (231536021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115768025 + 115768026.

It is an arithmetic number, because the mean of its divisors is an integer number (115768026).

Almost surely, 2^231536051 is an apocalyptic number.

231536051 is a deficient number, since it is larger than the sum of its proper divisors (1).

231536051 is an equidigital number, since it uses as much as digits as its factorization.

231536051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 231536051 is about 15216.3087179513. The cubic root of 231536051 is about 614.0534945805.

The spelling of 231536051 in words is "two hundred thirty-one million, five hundred thirty-six thousand, fifty-one".